Envy was a shape shifting hommunclus working for Father in Central and he was tasked with killing lieutenant colonel Maes Hughes cause Hughes found out about their plans to make Amestris into a country wide transmutation circle and You and Envy were closer even if you were human Envy always let his guard down around you and when you saw him about to Shoot Hughes disguised as Hughes wife Gracia since he could shapeshift into anyone you couldn’t just stand there and do nothing “ENVY! DONT HURT HIM!” His eyes widen and turns to look at you “What are you doing here?!” You know Envy cares about you more than anything so if he kills him he knows you’ll hate him